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全身麻醉

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ID: ANH00007chis
医学动画文字记录:如果你正在做手术,你可能会接受全身麻醉,使你进入睡眠状态,免受疼痛。对于范围广、时间长,或需要采取不适体位的手术,医生会建议进行全身麻醉。在手术之前,会使用套管针在你的手臂上建立静脉通路。通过这个静脉通路可以将液体和药物直接输入血液中。医生可能会使用一些药物来帮助你放松。你被放在手术台上,并尽可能采取舒适的体位。会在你的手臂上绑一个血压袖带来测量血压,在胸部放黏性垫来测量心率,在手指上夹一个夹子来测定血氧含量。这些设备可以让麻醉师在手术前、术中和术后密切监测你的生命体征。全身麻醉开始后,通过面罩吸入麻醉气体或通过静脉注射麻醉药品,使你进入睡眠状态。一旦入睡,就会通过面罩或气管插管给你输入氧气和麻醉气体的混合物。这根插管连着呼吸器,可以辅助呼吸,同时把气体输送到肺部。在肺组织深处,这些气体进入血液,并由血细胞携带到大脑。麻醉会阻止大脑接收来自身体神经的信息。因此,在手术过程中,你将保持睡眠和无痛状态,当你醒来时,也不会有任何记忆。手术结束后,麻醉师会给你用药来逆转麻醉状态,你会很快醒来。如果你有插管,医生会在你能自己平稳呼吸后立即将其拔掉。你会被送到恢复室(手术后的特别病房)进行密切监控,并根据需要服用止痛药。你可能会感到头晕眼花,但这种感觉应该很快就会消失。一旦病情稳定,你将被送回医院病房或家中。

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